Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Attosecond photoionization dynamics in the vicinity of the Cooper minima in argon
Författare
Summary, in English
Using a spectrally resolved electron interferometry technique, we measure photoionization time delays between the 3s and 3p subshells of argon over a large 34-eV energy range covering the Cooper minima in both subshells. The observed strong variations of the 3s-3p delay difference, including a sign change, are well reproduced by theoretical calculations using the two-photon two-color random-phase approximation with exchange. Strong shake-up channels lead to photoelectrons spectrally overlapping with those emitted from the 3s subshell. These channels need to be included in our analysis to reproduce the experimental data. Our measurements provide a benchmark for multielectronic theoretical models aiming at an accurate description of interchannel correlation.
Avdelning/ar
- Atomfysik
- Strömningsteknik
- Synkrotronljusfysik
- NanoLund: Centre for Nanoscience
- Matematisk fysik
Publiceringsår
2021-02-05
Språk
Engelska
Publikation/Tidskrift/Serie
Physical Review Research
Volym
3
Issue
1
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
American Physical Society
Ämne
- Atom and Molecular Physics and Optics
Status
Published
Projekt
- Attosecond chronoscopy of electron wave-packets probing entanglement and time-ordering of quantum processes
ISBN/ISSN/Övrigt
- ISSN: 2643-1564